经曰∶肺主身之皮毛；心主身之血脉；肝主身之筋膜；脾主身之肌肉；肾主身之骨髓。故肺
热叶焦，则皮毛虚弱急薄，着则生痿 也。盖痿之始。必因纵欲伤精，肾水虚败，不能制火，火克
肺金，致肺热叶焦也。又曰∶治痿独取阳明。阳明者，五脏六腑之海，主润宗筋。宗筋能束骨而
利机关，阳明热。宗筋失养，故足痿。水竭火盈，必兼唇燥，小便涩，虽遗如豚膏、浆糊之状，
脉浮大洪数。宜壮水制火，补气血，健筋骨。足常热者，火起涌泉穴，防痿证。
主方 黄柏（盐酒炒） 知母（盐水炒） 当归 生地 白芍药 石斛 麦门冬 山茱萸（等分
）水煎，空心服。
虚加人参、黄 ；补肾加枸杞、龟胶；补脾加白术、山药；小水不利，茯苓、萆 、滑石、
车前、石莲、地肤子、海金砂；火盛，芩、连、栀、翘、玄参；气下陷，升麻、柴胡；渴，五味
、天粉；壮筋骨，杜仲、牛膝、故纸。
鹿角胶丸 治血气两虚，腿足痿弱，久卧不起。
鹿角胶（一斤） 鹿角霜 熟地（各半斤） 当归身（四两） 牛膝 白茯苓 菟丝子饼
人参（各三两） 白术 杜仲（各二两） 虎胫骨（一对） 龟胶（一两）
上为末，入制虎骨，以无灰酒（二盏），溶化角胶，和丸桐子大，每服百丸，空心盐汤下。
萆 丸 治痿 不起。
萆 杜仲（姜汁炒） 肉苁蓉（酒洗） 菟丝子（煮饼）
上末，蜜丸桐子大，每服三钱，空心盐酒下。后再服健步丸、虎潜丸（方见虚损）尤佳。
健步丸 治膝软无力，屈伸不便，腿脚沉重，行动艰难。
归尾 白芍（酒炒） 陈皮 苍术 牛膝（酒，各一两） 条芩 吴茱萸 生地（各五钱）
桂枝（二钱） 大腹子（三个，即扁槟榔）
上为细末，酒煮，蒸饼糊丸桐子大，每百丸，空心，白术木通汤下。风湿加防己、风、羌、
泽；湿热，滑石；寒湿，川乌。随证加减。
《黄帝内经》说：肺主管身体的皮毛；心主管身体的血脉；肝主管身体的筋膜；脾主管身体的肌肉；肾主管身体的骨髓。所以，如果肺中有热导致肺叶枯焦，那么皮毛就会虚弱、紧缩变薄，病情加重就会产生痿证（肢体软弱无力、运动障碍的病证）。大概痿证的起始，必定是因为纵欲过度损伤精气，导致肾水虚衰败坏，不能制约相火，火气克制肺金，致使肺热叶焦。又说：治疗痿证应当独取阳明经。阳明经是五脏六腑气血的海源，主管滋润宗筋（汇聚于前阴的诸筋）。宗筋能够约束骨骼而利于关节活动，如果阳明经有热，宗筋失去滋养，所以足部痿弱。肾水枯竭而相火亢盛，必然兼见嘴唇干燥、小便涩痛，虽然精液遗泄如猪油、浆糊状，脉象浮大洪数。适宜采用壮水制火的方法，补益气血，强健筋骨。足部经常发热的，是火起于涌泉穴，需预防痿证的发生。
主方：黄柏（用盐酒炒）、知母（用盐水炒）、当归、生地、白芍药、石斛、麦门冬、山茱萸（各等分），水煎服，空腹服用。
若属虚证加人参、黄芪；补肾加枸杞、龟胶；补脾加白术、山药；小便不利，加茯苓、萆薢、滑石、车前子、石莲子、地肤子、海金沙；火气旺盛，加黄芩、黄连、栀子、连翘、玄参；气机下陷，加升麻、柴胡；口渴，加五味子、天花粉；强壮筋骨，加杜仲、牛膝、故纸（补骨脂）。
鹿角胶丸：治疗气血两虚，腿足痿弱，久卧不能起身。
配方：鹿角胶（一斤）、鹿角霜、熟地黄（各半斤）、当归身（四两）、牛膝、白茯苓、菟丝子饼、人参（各三两）、白术、杜仲（各二两）、虎胫骨（一对）、龟胶（一两）。
以上药物研为细末，加入炮制的虎骨，用无灰酒（两盏）溶化角胶，混合制成梧桐子大小的丸药，每次服用一百丸，空腹时用盐汤送服。
萆薢丸：治疗痿证不起。
配方：萆薢、杜仲（用姜汁炒）、肉苁蓉（用酒洗）、菟丝子（煮饼包裹）。
以上研为细末，蜂蜜炼丸如梧桐子大，每次服用三钱，空腹时用盐酒送服。之后再服用健步丸、虎潜丸（方剂见虚损篇）尤其好。
健步丸：治疗膝盖软弱无力，屈伸不便，腿脚沉重，行动艰难。
配方：归尾、白芍（用酒炒）、陈皮、苍术、牛膝（用酒浸，各一两）、条芩、吴茱萸、生地（各五钱）、桂枝（二钱）、大腹子（三个，即扁槟榔）。
以上研为细末，用酒煮，蒸饼糊制作成梧桐子大小的丸药，每次一百丸，空腹时用白术木通汤送服。若有风湿加防己、防风、羌活、泽泻；若有湿热加滑石；若有寒湿加川乌。随证加减。
The *Classic of Acupuncture and Moxibustion* (*Huangdi Neijing*) states: The Lung governs the skin and hair of the body; the Heart governs the blood vessels of the body; the Liver governs the sinews (tendons and ligaments) of the body; the Spleen governs the muscles of the body; the Kidney governs the bone marrow of the body. Therefore, if heat in the Lung causes the lung leaves to wither and dry up, the skin and hair will become weak, tight, and thin; if the condition persists, it leads to Wei Syndrome (a syndrome characterized by flaccidity and weakness of the limbs). Generally, the onset of Wei Syndrome is inevitably due to excessive sexual indulgence damaging the essence, causing Kidney Water to become deficient and failed, unable to control Ministerial Fire. Fire overacts on Lung Metal, resulting in Lung heat and withered lung leaves. It is also said: In treating Wei Syndrome, one should exclusively focus on the Yangming channel. The Yangming channel is the sea of the five zang and six fu organs, governing the nourishment of Zongjin (the gathering of sinews at the genital region). Zongjin can bind the bones and facilitate joint movement. If there is heat in the Yangming channel, Zongjin loses nourishment, leading to foot flaccidity. When Kidney water is exhausted and fire is abundant, there must be accompanying dry lips and astringent urination. Although seminal emission may resemble pig fat or paste, the pulse is floating, large, surging, and rapid. The appropriate treatment is to strengthen water to control fire, tonify qi and blood, and strengthen sinews and bones. Frequent heat in the feet indicates fire arising from Yongquan (KI 1), requiring prevention of Wei Syndrome.
Main Formula: Huangbai (Phellodendri Cortex, stir-fried with salt wine), Zhimu (Anemarrhenae Rhizoma, stir-fried with salt water), Danggui (Angelicae Sinensis Radix), Shengdi (Rehmanniae Radix), Baishao (Paeoniae Radix Alba), Shihu (Dendrobii Caulis), Maidong (Ophiopogonis Radix), Shanzhuyu (Corni Fructus) (equal parts). Decoct in water and take on an empty stomach.
If deficiency, add Renshen (Ginseng Radix et Rhizoma) and Huangqi (Astragali Radix); for tonifying the Kidney, add Gouqi (Lycii Fructus) and Guijiao (Colla Corii Asini); for tonifying the Spleen, add Baizhu (Atractylodis Macrocephalae Rhizoma) and Shanyao (Dioscoreae Rhizoma); for difficult urination, add Fuling (Poria), Bibo (Dioscoreae Hypoglaucae Rhizoma), Huashi (Talcum), Cheqian (Plantaginis Semen), Shilian (Nelumbinis Plumula), Difuzi (Kochiae Fructus), and Haijinsha (Lygodii Spora); if fire is excessive, add Huangqin (Scutellariae Radix), Lian (Coptidis Rhizoma), Zhi (Gardeniae Fructus), Qiao (Forsythiae Fructus), and Xuanshen (Scrophulariae Radix); if qi sinks, add Shengma ( Cimicifugae Rhizoma) and Chaihu (Bupleuri Radix); if thirsty, add Wuwei (Schisandrae Fructus) and Tianfen (Trichosanthis Radix); to strengthen sinews and bones, add Duzhong (Eucommiae Cortex), Niuxi (Achyranthis Bidentatae Radix), and Guozhi (Psoraleae Fructus).
Lujiaojiao Wan (Deer Antler Gelatin Pill): Treats dual deficiency of qi and blood, with flaccid weakness of legs and feet, unable to rise after lying down for a long time.
Formula: Lujiaojiao (Deer Antler Gelatin, 1 jin), Lujiaoshuang (Deer Antler Horn Powder), Shudi (Prepared Rehmanniae Radix) (each 0.5 jin), Dangguishen (Dongquang Radix, 4 liang), Niuxi (Achyranthis Bidentatae Radix), Bai Fuling (Poria with Wood), Tusizi Bing (Cuscutae Semen prepared as cake), Renshen (Ginseng Radix et Rhizoma) (each 3 liang), Baizhu (Atractylodis Macrocephalae Rhizoma), Duzhong (Eucommiae Cortex) (each 2 liang), Hu Jinggu (Tiger Tibia Bone, 1 pair), Guijiao (Colla Corii Asini, 1 liang).
Grind the above into powder, add processed tiger bone, dissolve the gelatins in Wuhui Jiu (pure rice wine, 2 cups), mix and form pills the size of paulownia seeds. Take 100 pills per dose with salt water on an empty stomach.
Bibo Wan (Dioscoreae Hypoglaucae Rhizoma Pill): Treats Wei Syndrome with inability to rise.
Formula: Bibo (Dioscoreae Hypoglaucae Rhizoma), Duzhong (Eucommiae Cortex, stir-fried with ginger juice), Rongrong (Cistanches Herba, washed with wine), Tusizi (Cuscutae Semen, cooked with steamed bread dough).
Grind into powder, make pills with honey the size of paulownia seeds. Take 3 qian per dose with salt wine on an empty stomach. Subsequently taking Jianbu Wan and Huqian Wan (formula see Deficiency chapter) is even better.
Jianbu Wan (Step-Strengthening Pill): Treats soft knees without strength, difficulty in flexion and extension, heavy legs and feet, and difficult walking.
Formula: Guiwei (Angelicae Sinensis Radix Stump), Baishao (Paeoniae Radix Alba, stir-fried with wine), Chenpi (Citri Reticulatae Pericarpium), Cangzhu (Atractylodis Rhizoma), Niuxi (Achyranthis Bidentatae Radix, soaked in wine) (each 1 liang), Tiao Qin (Scutellariae Radix), Wuzhuyu (Evodiae Fructus), Shengdi (Rehmanniae Radix) (each 5 qian), Guizhi (Cinnamomi Ramulus, 2 qian), Dafuzi (Arecae Causcaris Pericarpium, 3 pieces, i.e., flat Areca Nut).
Grind into fine powder, decoct with wine, use steamed bread paste to form pills the size of paulownia seeds. Take 100 pills per dose on an empty stomach with Baizhu Mutong Tang (Decoction of Atractylodis Macrocephalae Rhizoma and Akebiae Caulis). For wind-dampness, add Fangji (Stephaniae Tetrandrae Radix), Feng (Fangfeng/Saposhnikoviae Radix), Qiang (Qianghuo/Notopterygii Rhizoma et Radix), Ze (Zexie/Alismatis Rhizoma); for damp-heat, add Huashi (Talcum); for cold-dampness, add Chuanwu (Aconiti Radix). Modify according to symptoms.